I had a file created with some previous version of TaskPaper (could be even 2.x) that crashed TaskPaper (current version) upon opening. After investigation I could strip all irrelevant content until a single line of text was left. In hex viewer I have noticed an invalid sequence of LFLFCR characters that inevitably caused TaskPaper to crash. Please find the attached example file.
Test.taskpaper.zip (578 Bytes)